Sharing 30GB+ privately

Hello everyone. This is my first post on this forum. I was looking for an easy to use forum of experts on web development because it is something I want to get into and have several questions.

First and foremost, I want to try to build a website with my friend who lives in another state. What are some good methods of privately sharing files and content with each other? I was thinking drop box but we need at least 30 gb minimum and the drop box business which has more space has a 5-user minimum which would cost a bit. Are there better alternatives?

Google Drive's 100GB option is only about $2/month, if that's feasible; and anything in a user's drive can be shared privately between any number of other Google accounts with very fine-grained persmission controls (if that's necessary).